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problem with fax in as5350xm cisco

zeinab.mahdavi
Level 1
Level 1

 

Hello Everybody ,

 

we want relay fax from as5350xm to the sip server. So,I have configured fax(t38 protocol ) on as5350xm gateway and the Sip server ,

Now the signaling is Properly working , but we  couldn't hear or receive fax tone in fax machine, I'm confused that whether gateway must relay a fax tone to fax machine or our sip server ?

the connection establishment is ,first the IVR is played then we click on start button on the fax machine and nothing could be hear  and then the gateway send the invite fax(t38 SDP) to our sip server , also it receive 200 OK(t38 sdp) and response as ack .

I don't know why the data (fax) couldn't transfer .

Furthermore , the packet that we receive on our Sip Server , is the same as below , but we couldn't interpret it. all of the packet are 172 bytes and ,the following 3 packets are the first three packet that we receive in one call and also followed by many other same packet.

are these special t30 packet format that based on ITU ? 

128 - 8 - 198 - 219 - 10 - 173 - 235 - 34 - 9 - 182 - 20 - 85 - 155 - 20 - 6 - 116 - 135 - 157 - 18 - 7 - 201 - 134 - 148 - 24 - 5 - 227 - 129 - 225 - 4 - 24 - 151 - 134 - 198 - 7 - 18 - 156 - 135 - 112 - 6 - 21 - 154 - 133 - 111 - 6 - 100 - 132 - 158 - 17 - 6 - 93 - 134 - 144 - 31 - 4 - 254 - 129 - 232 - 26 - 26 - 233 - 129 - 249 - 4 - 31 - 144 - 135 - 112 - 7 - 78 - 135 - 226 - 4 - 17 - 152 - 159 - 18 - 5 - 235 - 135 - 120 - 7 - 90 - 135 - 225 - 4 - 23 - 155 - 156 - 29 - 26 - 149 - 132 - 100 - 7 - 87 - 135 - 231 - 4 - 20 - 154 - 156 - 28 - 27 - 151 - 132 - 102 - 7 - 220 - 135 - 251 - 4 - 21 - 133 - 146 - 31 - 24 - 150 - 132 - 99 - 6 - 113 - 135 - 159 - 16 - 6 - 210 - 134 - 150 - 25 - 4 - 228 - 129 - 236 - 5 - 27 - 149 - 134 - 241 - 7 - 28 - 146 - 135 - 67 - 6 - 23 - 152 - 132 - 97 - 6 - 99 - 132 - 152 - 20 - 6 - 72 - 135 - 146 - 29 - 7 - 245 - 134 - 148 - 24 - 5 - 226 - 129 - 230 - 4 - 25 - 150 - 134 - 218

/************************************************************************************************/

128 - 8 - 198 - 220 - 10 - 173 - 235 - 194 - 9 - 182 - 20 - 85 - 7 - 19 - 156 - 135 - 114 - 6 - 106 - 154 - 133 - 111 - 6 - 101 - 132 - 158 - 17 - 6 - 81 - 134 - 144 - 31 - 4 - 248 - 129 - 233 - 26 - 26 - 232 - 134 - 255 - 4 - 31 - 144 - 134 - 92 - 6 - 17 - 153 - 132 - 100 - 6 - 108 - 133 - 155 - 21 - 6 - 112 - 135 - 156 - 18 - 7 - 193 - 134 - 151 - 25 - 4 - 225 - 129 - 227 - 5 - 24 - 148 - 134 - 206 - 7 - 29 - 157 - 135 - 116 - 6 - 20 - 155 - 133 - 109 - 6 - 102 - 132 - 153 - 22 - 6 - 69 - 134 - 147 - 28 - 7 - 243 - 134 - 234 - 26 - 5 - 239 - 129 - 229 - 4 - 30 - 145 - 134 - 214 - 6 - 16 - 159 - 132 - 120 - 6 - 104 - 133 - 154 - 107 - 7 - 210 - 135 - 242 - 7 - 104 - 133 - 147 - 30 - 25 - 145 - 132 - 108 - 7 - 244 - 134 - 241 - 7 - 111 - 133 - 144 - 25 - 30 - 144 - 133 - 105 - 7 - 243 - 134 - 207 - 7 - 109 - 132 - 145 - 24 - 30 - 146 - 133 - 106 - 7 - 254 - 135 - 218 - 7 - 96 - 132 - 150 - 27 - 31 - 157 - 154 - 21 - 7

/************************************************************************************************/

128 - 8 - 198 - 220 - 10 - 173 - 235 - 194 - 9 - 182 - 20 - 85 - 7 - 19 - 156 - 135 - 114 - 6 - 106 - 154 - 133 - 111 - 6 - 101 - 132 - 158 - 17 - 6 - 81 - 134 - 144 - 31 - 4 - 248 - 129 - 233 - 26 - 26 - 232 - 134 - 255 - 4 - 31 - 144 - 134 - 92 - 6 - 17 - 153 - 132 - 100 - 6 - 108 - 133 - 155 - 21 - 6 - 112 - 135 - 156 - 18 - 7 - 193 - 134 - 151 - 25 - 4 - 225 - 129 - 227 - 5 - 24 - 148 - 134 - 206 - 7 - 29 - 157 - 135 - 116 - 6 - 20 - 155 - 133 - 109 - 6 - 102 - 132 - 153 - 22 - 6 - 69 - 134 - 147 - 28 - 7 - 243 - 134 - 234 - 26 - 5 - 239 - 129 - 229 - 4 - 30 - 145 - 134 - 214 - 6 - 16 - 159 - 132 - 120 - 6 - 104 - 133 - 154 - 107 - 7 - 210 - 135 - 242 - 7 - 104 - 133 - 147 - 30 - 25 - 145 - 132 - 108 - 7 - 244 - 134 - 241 - 7 - 111 - 133 - 144 - 25 - 30 - 144 - 133 - 105 - 7 - 243 - 134 - 207 - 7 - 109 - 132 - 145 - 24 - 30 - 146 - 133 - 106 - 7 - 254 - 135 - 218 - 7 - 96 - 132 - 150 - 27 - 31 - 157 - 154 - 21 - 7

/************************************************************************************************/

 

16 Replies 16

Hi, can you add a "debug ccsip message" of fax call?

Can you add a "debug fax relay t30 all" and the config of your AS?

Regards.